Canning apparatus



May 22, 1928. 1,670,863

A., K. MALMQLQIST CANNING APPARATUS Filed March 18, 1925 5 Sheets-Sheet 2 Patented May 22, 1928.-

UNITED PATENT QFF CE- AIDOLPH- K. nnmrouzsr, or son-r1; BELLINGm, wnsznme'rolt, ASSIGNOI, FY mun.

ASSIGNMENTS, To 'I HERM-OKEPT conrormrro'n, our NEW YORK, 1s. 11, A con- PORATION or DELAWARE;

Cb-NNING ABI'ARATUS.

Application filed. March 18,1935, Serial No. 16,431., and. in Canada March 21, N24.

This invention relates to improvements canni-n machinery, and more particularly to thee anism for shaping. or perfecting the open end portions of cans,.-one object of the invention-being to provide elficient mechanismwhich shall operate automatically on can-s fed thereto successively .to properly shape or perfect their open end portions, preparatory to feeding the, cans, into and through Vacuumiied chambers wherein the on an he r s d c nten ay e su to vacuum. 2

With this and other objects in view, the inven ion c nsis s in certain features of con;- struction and combinations of parts as herematte set fo t and pointe out in the claims.

In the accompanying, drawings I Figure 1 is a view in vertical sectionillustrating my improvements; v

Figure 2 is a view partly in plan and partly in section; 7

Figures 3, 4 and 5 are vertical sectional views illustrating different positions which the movable parts will, be caused to assume during the operation ofthe machine, and

Figures 6: to 1G illustrate details I ountejd upon a. suitable support 1 is a bracket 2, on which the framework of the shaping mechanism is supported. This framework includes an upper bracket 3 located above the lower bracket 2 and sustained by an upright bracket 4. (lens ma be fed to the machine by a suitably rotated table 5, and upon their discharge, the cans may pass over a, table 6 on their way to a chamber indicated at 7 wherein the cans and their contents may be sub'ected to treatment. The means employed for? feeding the open cans into the shaping 01' perfecting mechanism and also from such mechanism to the cl'iamber 7, may be substantially such as shown and described in my co-pending 'ap-' plications filed respectively, on the 18th day of August, 1922, and on the 26th day of, August, 1924, and designated respectively by Serial No. 582,712 patented October 4, 1927, No. 1,64i,,99(), and Serial No. 734,223 patented ()ctober 12, 1926, No. 1,603,132 and heed no further description herein, as the present improvements relate particularly to the can shaping or perfecting mechanism.

When clean is moved into the can-perfecting mechanism, it will become dep sited upon one of a series of can supporting platforms or pockets 48, each of which is'ma de with a. lateral extension l9 to facilitate the subsequent discharge of the can and each of said platforms or pockets is made with a groove for the accommodation of the bottom flange of av can. 7 pockets l8 are provided with depending shanks. 5 1 entering sockets in the; upper ends of plungers 52 and pinned to the latter, as at 5,3. The lungers 52' are vertically movable through suitable holes in arms 54 on a spider secured to rotatable with a shaft 3Q, and each platform or pocket 48 is made, with an extension 55 which carries a guide rod 56 entering a hole 57 in one of the spider arms 54} Each plunger 52 carrres near its. lower end, a roller 58 to cooperate with a grooved cam 59' secured to the lower fixed bracket 2, for raisin and lowering the platform or pockets and t e can thereon relatively to the devices. located above the same which operate to straighten or perfectdthe open fiangeduppcr ends of the cans, all as shown and described in my cfizpending applications, hereinbefore identid I p p The can raising and lowering devices and the straightening or perfecting devicesv above referred to constitute one of units 60 of the can perfecting mechanism, and in the apparatus illustrated in the drawings, six such units are employed, andthe movable parts of each of said units are carried by the spider 29. In addition tolthe radial arms 54, the spider 29 is provided with a horizontal plate or bracket member 62 located above the said arms and provided with openings 63 and seats 63. for the accormnodatlon of the upper ends of cans when the same are raised by the raising of the can platform or pockets 48. The driving shaft 30 for the spider 29 passes through, the central tubula-r portion of the latter and is pinned to the same,tl1e upper portion of said. shaft passing through a bushing 65 in a bearing 66 onthe upper bracket 9. The lower portion of the shaft passes through av bushing 67 in the enlargement 61 on the lower bucket 2 and a gear .68 is keyed to its depending end,ball bearings 69 being interposed between said gear and the lower bracket 2 and enclosed by flanges 70 and 70 The gear 168 is driven by suitable means as Shown The platforms or and described in my copending applications previously identified.

Each unit 60 of the straightening or shaping mechanism includes a flanging punch 87, and shaping dies 88, 89, the latter being slidingly mounted on the bracket 62 and under a portion of said bracket, rollers are located to assist in supporting the spider 29 during the flanging operation, of the punch 87. The flanging punches 87 for the several units 60 are carried by a bracket 91 which is rotatable on the bushing 05 and is rotatable with the spider 29. The head of each punch 87 may be made dish-shaped and provided with a depending annular flange 92 (Figure 8) to engage the flanged edge of a can. Each punch head is provided with a central shank 93 to enter a socket 9 1 in the lower end of an arm or carrier 95 and from said shank, a threaded stem 96 projects and enters a threaded portion of the socket 94. This construction permits the punch head to be adjusted vertically, and it may be held at any desired adjustment by a spring latch 97 which may engage in any one of a series of notches 98 in the edge 9f the punch head. A laterally projecting pin 99 is carried by the upper portion of the arm or carrier 95 and on this pin, a roller 1.00 is mounted and cooperates with a cam 101 on the under side of the fixed bracket 3,said cam being adapted to cause vertical movement of the punch during rotation of thebracket 91 and spider 29 about the shaft 30. The sliding dies 88 and 89 of each unit 60 arecaused to approach and recede' from the can, bythe action of fixed cams 102 and 108,each die 88 being provided with a roller 10 1 to cooperate with the cam 102, and each die 89 being provided with a roller 105 to cooperate with the cam 103.

' l/Vhen a can shallhave reached one of the platforms or pockets 48 of one of the'can perfecting units 60, the parts of said unit will be in the position indicated at the left hand side Figure 2 and as shown in Figure 9 58 travels on the cam 59, the platform or pocket 48 will he raised so that the upper flanged end of the can will be projected through one of the openings63 of the spider 62 and about one-eighth of an inch above the plane of the jaws-or dies 88*89. During the same extent of travel of the unit 60, co-

operation of the roller with the upper cam 101, will cause the sleeve or carrier 95 and hence the punch head. 87 to descend andv its circular flange 92 to enter the open upper flanged end of the can. At the same time the jaws or dies 88-89 will be caused by the cams 1-02--103 to move toward each other and engage the upper edge portion of the can. The positions of the parts will then be as indicated in Figures 4; and 5. The

U. As the spider 29 rotates and the roller raising of the can sufl'iciently to cause its flanged upper end to project slightly above the plane of the dies is of importance because the flanges of some cans are badly bent and if not raised above the plane of thedies, the latter might catch the flange and fail properly to clear thesame as the spider continues to rotate carrying the can with it. During the travel of the spider" roller 58 will enter a depressed portion 106 of the cam 59 (Fig. 7) and the can will then hang on the dies and the flange of the can may be shaped without changing theheight of the can. 'Duringthe travel of the parts from this point, roller 1.00 cooperating with the cam l01',will-cause the arm or sleeve 95 and punch head 87 to move downwardly and the punch head to be moved down tightly against the can flange and the latter to be straightened or its, shape perfected. In

order that the can flange may be kept straight or properly shaped, it is important that the punch be given a'sudden' hammer blow, otherwise the can flange might spring back to its original shape after having been released from the action of the punch and dies. To accomplish such a blow being imwithout damage to the tin of the flange.

The upper, open flanged end of the can-having now been straightened or perfected in shape,-the dies and the flange punch will recede and the can will descend with the descent of the can carrying platform 18 during the travel of the unit 60 and the perfected can is ready to be transferred to the chamber 7 wherein the filling of the can with liquid, such as syrup, may be performed, and in the meantime, other cans have been perfected in the mechanism as the spider. 29 thereof continues to. rotate. v

Having fully described my invention what I claim as new and desire to secure by Let with frame work and a rotating spider ,hav-

ing arms each provided with a vertically movable can support, and -,a vertically mov able punch above said support and adapted to engage the open end portion of a can on said support, of horizontally disposed slid ing shaping dies to engage and embrace the open end portion'of the can and correct any irregularity thereof, and cam means for sliding saiddies relatively to each other and relatively to a can.

2. In apparatus for correcting the shape of the open upper ends of cans, the combination of shaping dies With a rotating spider, and means for operating the same, a punch to enter the mouth portion of a can, a vertically movable support for the punch,means for eifecting vertically adjustable connection of the punch to said support, and means for locking the punch at ditl'erent' positions of adjustment relatively to its support.

3. 1n apparatus for correcting the shape of the open upper ends of cans, the combination of a vertically movable can platform, can shaping devices above said platform, and

acam having a raised portion for causing said platform to move vertically, said raised portion having a recess.

4. In apparatus of the character described, the combination with framework and a rotating spider, of a plurality of can shape perfecting mechanisms carried by said spider, each of said mechanisms comprising a vertically movable can support, a vertically movable plunger'over said support, a

punch head carried by said plunger, means for adjusting each punch head vertically, relatively movable dies to engage a can, cam

means for operating said dies, means for re- ADOLPH K. MALMQUIST.

have signed this 

